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Magnetism in 4d Transition Metal–Ag(001) Sandwiches

Published online by Cambridge University Press:  26 February 2011

Dennis P. Clougherty ,
M. E. Mchenry  and
J. M. Maclaren
Dennis P. Clougherty
Affiliation:
Department of Physics, University of California, Santa Barbara, CA 93106
M. E. Mchenry
Affiliation:
Department of Metallurgical Engineering and Materials Science, Carnegie Mellon University, Pittsburgh, PA 15213
J. M. Maclaren
Affiliation:
Department of Physics, Tulane University, New Orleans, LA 70018
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Abstract

Using ab-initio spin-polarized layer Korringa-Kohn-Rostoker (LKKR) band structure calculations, we investigated the possibility of having a stable ferromagnetic ground state in 4d transition metal (TM)–Ag(001) sandwiches (TM = Tc, Ru, Rh, and Pd). In contrast to recent calculations performed on systems with TM overlayers on Ag (001), we find that the TM sandwich configuration gives a paramagnetic ground state. While excellent agreement in general is obtained for the layer-projected densities of states (LDOS), the sandwich configuration lowers the densities of states at the Fermi energy (EF) in the case of Rh and Ru by a small amount which seemingly prevents the marginal ferromagnetic instability predicted by Eriksson et. al. (Phys. Rev. Lett. 66, 1350 (1991)) from occurring.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 231: Symposium S – Magnetic Surfaces, Thin Films and Multilayers , 1991 , 203
Copyright
Copyright © Materials Research Society 1992

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